patch 7.4.1652

Problem:    Old style test for fnamemodify().
Solution:   Turn it into a new style test.

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1652,
 /**/
     1651,
 /**/